1. Heather has a very important exam to take in the morning. Since she wants to be sure that she will wake up in time, she sets two alarm clocks. One has a .95 probability that it will ring, and the other has a .98 probability that it will ring. She sets both clocks. What is the probability that at least one of the alarm clocks will wake her up?A. 0.9025
B. 0.9310
C. 0.9604
D. 0.9800
E. 0.9990

Answers

Answer 1

Answer: The correct answer for the question that is being presented above is this one: "C. 0.9604." The probability that at least one of the alarm clocks will wake her up is 0.9604. Heather has a very important exam to take in the morning. Since she wants to be sure that she will wake up in time, she sets two alarm clocks.

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84-63i in conjugate form?.

Answers

Conjugate form of complex number:
z = a + b i is a - b i
and for : z = a - b i is : a + b i
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10 Type the correct answer in the box. Use numbers instead of words. Use a calculator to help solve the problem. а A community garden consists of 1.75 acres of land. The community garden has 35 equal-sized plots of land for rent. The cost to rent a plot in the garden for a year is $0.06 per square foot. What does it cost to rent one plot of land in the community garden for 1 year?

Answers

Answer:

$130.68

Step-by-step explanation:

1 acre = 43,560 square feet

3/4 of 43560 = 32,670 (So that would be 76,230 sq ft in 1.75 acres because 43560 + 32670 = 76230)

We need to divide the total by 35 plots.

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2,178 square feet is just one plot of 35. We need to multiply 2178 by 0.06.

Answer: $130.68

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Give the values of a,b & c

Answers

Answer: B

Step-by-step explanation:

$(1)/(4)x^(2)$ + 5 = 0

= 4( $(1)/(4)x^(2)$ + 5) = 4(0)

= x² + 20 = 0

= x² + 0x + 20 = 0

a=1, b=0, c=20

Carissa and Louann both have savings accounts. Carissa has $250 in her account and deposits $80 per month. Louann has $1230 in her account and withdraws $60 per month.After how many months will they have equal amounts of money in their accounts? What amount of money will each have when it is the same amount?

It will take ____ months. Then, they will both have $ ____
in their accounts.

Answers

carissa value after x months=current+amount deposited
louan value after x months=current-amount taken out

carissa depositied=amount per month times x months=80x
louan take out=amount per month tiems x months=60x

when wil amount be equal
se equal

cariss=lousa
250+80x=1230-60x
add 60x both sides
250+140x=1230
minus 250 both sides
140x=980
divide both sides by 140
x=7

find how much that is
250+80(7)=250+560=810

7 months both have $810

Completely factor this polynomial:
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Answers

$16x^2-25y^2=(4x)^2-(5y)^2=(4x-5y)(4x+5y)$

Solve the equation for y (Y-3)^2=4y-12

Answers

If you would like to solve the equation for y, you can do this using the following steps:

(y - 3)^2 = 4y - 12
y^2 - 6y + 9 - 4y + 12 = 0
y^2 - 10y + 21 = 0
(y - 7) * (y - 3) = 0
1. y = 7
2. y = 3

The correct result would be y = 7 or y = 3.

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